Environmental Engineering Commons^™

Climatic And Land Cover Sensitivities Of Stormwater Runoff In A Coastal Natural-Urban Basin Of Texas, Usa., Nusrat Nasrin Khan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Changes in climatic and land use drivers typically drive stormwater runoff quantity and quality. This study focuses on determining the stormwater runoff sensitivities to variation in climatic and land cover changes in a coastal natural-urban basin. A mechanistic hydrologic model was developed for the Spring San Jacinto Basin (SSJB) of Texas, USA considering the basin as a pilot study area by using the U.S. Environmental Protection Agency (EPA)’s Storm Water Management Model 5.2. The SSJB drains an area of 1949 km² ultimately into the northern Gulf of Mexico, USA through peripheral neighborhoods of the Greater Houston area. The model …

Assessing The Potential And Pathways For Renewable Energy Transformations In Orleans, California, Malcolm Prescott Moncheur De Rieudotte

Cal Poly Humboldt theses and projects

In what is now known as the state of California in the United States, the Karuk Tribe is interested in deploying a renewable-powered microgrid in the rural community of Orleans to improve electricity system reliability and resilience to address a wide range of challenges, including extreme events such as wildfires. This study assesses the potential of local distributed renewable energy and battery storage to meet Orleans' energy needs today and in the increasingly electrified future using an energy model. It also identifies existing cultural and social priorities for energy technology along with structural barriers to renewable energy adoption and the …

Ecological Restoration Of Lead/Zinc/Copper Mine Tailings: Phytomanagement And Amendment Strategies To Enhance Substrate Functionality And Biomass Production, Mariam K. Al-Lami

Doctoral Dissertations

“The extreme physiochemical characteristics of mine tailings inhibit microbial processes and natural plant growth. Consequently, vast and numerous tailings sites remain barren for decades and highly susceptible to wind and water erosion. Phytostabilization is a cost-effective and ecologically productive remediation approach; however, tailings revegetation is generally challenging and must often be assisted with appropriate soil amendments. Amendments applied individually in greenhouse studies discussed herein revealed notable improvement in bioenergy crops growth only with biosolids treatments. Recalcitrant carbon amendments (biochar and humus) showed notable impact only on tailings physichochemical and hydraulic properties. Nevertheless, biosolids may not support sustained vegetation due to …

Building Performance - Societal Drive, Programme And Symposium, Joseph Little, Patrick Daly

Articles

Society is increasingly looking at the construction industry to mitigate the environmental crisis and solve the housing crisis through wholesale embrace of three broad sets of challenges. The MSc in Building Performance (Energy Efficiency in Design) (MSc BP(EED)) was created in 2017 to provide significant upskilling in the knowledge, skills, and software applications of building design professionals so that they can meet these challenges, while creating compliant, sustainable, super-low energy, new and renovated buildings. The delivery of the programme supports upskilling of employed building design professionals at Masters level, encouraging a minority to develop their capacity and interest in research …

Editorial: Coastal Flooding: Modeling, Monitoring, And Protection Systems, Valentina Prigiobbe, Clint Dawson, Yao Hu, Hatim O. Sharif, Navid Tahvildari

Civil & Environmental Engineering Faculty Publications

Coastal flooding has received significant attention in recent years due to future sea-level rise (SLR) projections and intensification of precipitation, which will exacerbate frequent flooding, coastal erosion, and eventually create permanently inundated low-elevation land. Coastal governments will be forced to implement measures to manage risk on the population and infrastructure and build protection systems to mitigate or adapt to the negative impacts of flooding. Research in this area is required to establish holistic frameworks for timely and accurate flooding forecast and design of protection systems.

Source Apportionment Of Fine Particulate Matter Down To Nanoparticle In Bangkok By Positive Matrix Factorization (Pmf) Model, Thanaphum Manjantrarat

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research study investigated the sources of particulate matter with sizes ranging from less than 0.1 to larger than 10 microns in Bangkok by installing Nanosampler at three measurement stations (Ari, Din Daeng, and Bang Na) for one year (January 2021-December 2021). The collected samples were analyzed for ion species, carbon species, and elemental components to identify the chemical composition. The results were then used to classify the sources of air pollution using the Positive Matrix Factorization (PMF) model. The study indicated that particulate matter levels are highest from December to March and lowest from April to November. The average …

การรับรู้ความพร้อมของครัวเรือนในการจัดการน้ำอุปโภคบริโภคในช่วงอุทกภัย กรณีศึกษาจังหวัดนครสวรรค์, สุธัญญา เกษสุริยงค์

Chulalongkorn University Theses and Dissertations (Chula ETD)

อุทกภัยของจังหวัดนครสวรรค์เกิดขึ้นบ่อยครั้งซึ่งจะส่งผลกระทบต่อปริมาณและคุณภาพน้ำอุปโภคบริโภคช่วงอุทกภัย ผู้วิจัยจึงเห็นความสำคัญการรับรู้ความพร้อมด้านการจัดการน้ำอุปโภคบริโภคช่วงอุทกภัยเพื่อลดปัญหาการขาดแคลนน้ำและความเสี่ยงต่อการเกิดโรคที่มีสาเหตุมาจากน้ำ งานวิจัยนี้มีวัตถุประสงค์เพื่อ 1) ศึกษาสถานการณ์การจัดการน้ำอุปโภคบริโภคช่วงอุทกภัย 2) ศึกษาปัจจัยที่ส่งผลต่อการรับรู้ความพร้อมของครัวเรือนในการจัดการน้ำอุปโภคบริโภค 3) ศึกษากลุ่มโรคของชุมชนจากผลกระทบของอุทกภัย เพื่อลดปัญหาผลกระทบด้านสุขภาพช่วงอุทกภัย กรณีศึกษาพื้นที่ประสบอุทกภัย ได้แก่ อำเภอชุมแสง อำเภอลาดยาว และอำเภอท่าตะโก จังหวัดนครสวรรค์ เก็บข้อมูลโดยใช้แบบสอบถามกลุ่มตัวอย่างจำนวน 400 ครัวเรือน รวมทั้งการสัมภาษณ์หน่วยงานภาครัฐผู้ที่เกี่ยวข้อง งานวิจัยทำการวิเคราะห์ข้อมูลแบบสอบถามโดยใช้สถิติเชิงพรรณนาและวิเคราะห์ความถดถอยแบบโลจิสติก (Logistic Regression Analysis) ผลการศึกษาพบว่า 1.ปริมาณน้ำอุปโภคบริโภคมีเพียงพอ โดยได้รับความช่วยเหลือจากหน่วยงานรัฐภายใน 1 ถึง 2 วันหลังเกิดอุทกภัย ครัวเรือนมีการปรับปรุงคุณภาพน้ำได้แก่ การต้มให้เดือด แกว่งสารส้ม และตั้งไว้ให้ตกตะกอน ตามลำดับ การรับรู้ด้านความสะอาดน้ำช่วงอุทกภัย พบว่าน้ำมีความสะอาด การรับรู้พื้นที่อยู่อาศัยมีความเสี่ยงระดับปานกลาง ผู้ตอบแบบสอบถามมีความกังวลต่อการเกิดอุทกภัยระดับมาก ร้อยละ 25.5 เห็นว่า ไม่มีการให้บริการจัดการขยะในช่วงอุทกภัย การรับรู้ปัญหาการเจ็บป่วยระดับมาก ซึ่งโรคที่พบมากที่สุด คือ โรคผิวหนัง เกิดจากการขาดแคลนน้ำสะอาดสำหรับอุปโภคและการสัมผัสน้ำปนเปื้อน 2.ปัจจัยความสัมพันธ์กับการรับรู้ความพร้อมในการจัดการน้ำช่วงอุทกภัย ได้แก่ ระดับการศึกษา รายได้ของครัวเรือน จำนวนสมาชิก การรับรู้ข่าวสาร ประสบการณ์ในอดีตทำให้เกิดความเคยชินกับสถานการณ์ นำมาซึ่งข้อเสนอแนะต่อครัวเรือนและหน่วยงานที่เกี่ยวข้อง ควรมีการส่งเสริมการปฏิบัติด้านสุขอนามัยที่ดีของชุมชนและวางแผนตรวจสอบคุณภาพน้ำเป็นระยะ เพื่อเป็นการบรรเทาผลกระทบต่อสุขภาพอนามัยของประชาชน

Stormwater Runoff Response Under Changing Climate And Land Uses Across Gradients Of Inland And Coastal Urban-Natural Basin, Mahmood Khan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Climatic variability has caused significant shifts in the magnitude, frequency and spatiotemporal distribution of precipitation, generating excessive runoff that leads to frequent occurrences of extreme hydrologic events such as the pluvial (rainfall accumulation) and fluvial (riverine) floods. The conversion of natural areas into urban lands is further exacerbating the rainfall accumulation by increasing surface imperviousness that hinders infiltration of water into the soil. This dissertation predicts and characterizes potential shifts in the future annual stormwater runoff
volumes and runoff extremes under the standalone and coupled changes in climate and land use across inland and coastal urban-natural settings. The research was …

Detection Of Fecal Bacteria In Watersheds Impacted By Acid Mine Drainage, Claire Addison Mcdonald

Graduate Theses, Dissertations, and Problem Reports (ETD)

Escherichia coli, a fecal coliform, is an essential component of water quality monitoring, entering waterways through sewage deposits, agricultural land and livestock, and wildlife. Various fast and user-friendly methods for quantifying E. coli make it the principal indicator bacteria for fecal contamination. The most common methods for E. coli quantification are culture-based and involve cultivating samples onto nutrient agar and counting the visible colonies. However, E. coli can enter a viable but non-culturable (VBNC) state in stressful environments. Bacteria in a VBNC state are still alive but reduce key metabolic activities that typically encourage growth and division, allowing them …

Application Of Artificial Intelligence For Co2 Storage In Saline Aquifer (Smart Proxy For Snap-Shot In Time), Marwan Mohammed Alnuaimi

Graduate Theses, Dissertations, and Problem Reports (ETD)

In recent years, artificial intelligence (AI) and machine learning (ML) technology have grown in popularity. Smart Proxy Models (SPM) are AI/ML based data-driven models which have proven to be quite crucial in petroleum engineering domain with abundant data, or operations in which large surface/ subsurface volume of data is generated. Climate change mitigation is one application of such technology to simulate and monitor CO2 injection into underground formations.

The goal of the SPM developed in this study is to replicate the results (in terms of pressure and saturation outputs) of the numerical reservoir simulation model (CMG) for CO2 injection into …

Evaluating Effects Of Sediment On Microbial Loading In A Drinking Water Distribution System, Erika Osborne

Graduate Theses, Dissertations, and Problem Reports (ETD)

Drinking water distribution systems (DWDS) are critical for protecting public health by ensuring safe water is transported from centralized treatment facilities to consumers. Sediment accumulation in DWDS is a common challenge that water utilities face that may pose some health risks when waterborne pathogens colonize biofilms formed on the sediment surface. Water utilities often establish flushing routines to help mitigate sediment accumulation in their system but the role that sediment plays in contributing to the total microbial loading in the system is unclear. The main objective of this study was to determine if sediment in a DWDS presents a significant …

Development Of An Innovative Co-Treatment Technology For Produced Water And Blowdown Water: A Regional Approach Of Water Management For Energy Production, Golnoosh Khajouei

Graduate Theses, Dissertations, and Problem Reports (ETD)

Freshwater use for power generation represents the second-largest water use globally. In the United States, freshwater withdrawals for thermoelectric power accounted for 38% of the total freshwater withdrawals for all uses in 2010. Cooling systems are the most water-intensive part of the thermoelectric generation process. For instance, one 300 MW power generator required about 20,000 m³/h circulating cooling water. The cooling operation discharges a large volume of wastewater in the form of blowdown water (10-20% of the consumed water) that requires treatment for reuse or surface discharge. Produced water (PW), the fluid which returns to the surface from …

Elucidating Biogeochemical Reactions Of Iron For Ammonium Removal And Nutrient Recovery From Wastewaters: Moving Toward Sustainable Wastewater Management, Rifat Anwar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Development and applications of anaerobic treatment technologies has been discussed as an effective alternative to conventional aerobic processes for removal of nitrogen from wastewaters. With abundance of iron and its high reduction potential, employing ferric reduction-based reaction pathways in engineering processes could be an effective strategy to promote energy efficiency of wastewater treatment. In particular, ferric reduction coupled to ammonium oxidation (Feammox), a novel microbial metabolic function recently found to occur under anaerobic/anoxic condition through iron dosing, can be used for nitrogen pollutant removal. Iron dosing for wastewater treatment could also promote other microbial and chemical reactions that facilitate nutrient …

Evaluating Potential Soil Amendments And Geomorphic Methods For Mine Land Reclamation, Amanda Rodrigues Silva

Graduate Theses, Dissertations, and Problem Reports (ETD)

The United States has approximately 22% of the world’s coal reserves. Since 1961, the electric power sector has been the major user of coal in the U.S., accounting for 91.9% of the coal consumed in the country in 2021. Sixty-two percent of total U.S. coal production in 2021 was sourced from surface mining, and Wyoming, West Virginia, Pennsylvania, Illinois, and Montana were responsible for 74% of this total production.

Coal-mining activities expose sulfide minerals in rocks that, when in contact with oxidizing conditions, produce sulfate-rich drainage known as acid mine drainage (AMD). AMD treatment typically involves chemical treatments to raise …

The Role Of Microorganisms In Rare Earth Elements Bioaccumulation, Maedeh Soleimanifar

Dissertations

Rare earth elements (REE) are valuable raw materials in our modern life. Extensive REE application from electronic devices to medical instruments and wind turbines, and non-uniform distribution of these resources around the world, make them strategically and economically important for countries. Current REE physical and chemical mining and recycling methods could have negative environmental consequences, and biologically-mediated techniques could be applied to overcome this issue.

In this research, the first objective is to investigate the bioextraction of cerium oxide and neodymium oxide nanoparticles (REE-NP) by a pure culture Methylobacterium extorquens AM1 (ATCC®14718™). Results show that adding up to 1,000 ppm …

Sustainable Wastewater Treatment Technology For Rural Communities, Yousra Ahmed

Theses and Dissertations

Egypt is considered the country with the largest population in the Middle East Region. It is also expected to have the most significant population increase. The main objective of the present research was to develop a sustainable and effective wastewater treatment technology based on locally available materials such as sand and fabric in the treatment process. From the results obtained from the different experimental runs, it can be concluded that the use of fabric-aided sand filters achieves significant removal efficiency, especially in terms of COD and TSS. The results indicated the technical feasibility of utilizing different fabric materials with nylon …

Mathematical Model Of The Efficiency Of Investments Aimed In The Implementation Of Water-Saving Technologies

Irrigation and Melioration

In Uzbekistan, research work is being carried out aimed at improving the economic mechanisms for the introduction of water-saving technologies for irrigating agricultural crops. At the same time, the issues related to the analysis of the effectiveness of the use of water-saving technologies when irrigating cotton, the development of mathematical methods for assessing the effectiveness of investments, as well as their introduction into practice have not been sufficiently studied. This article provides a mathematical model of the efficiency of investments aimed at introducing water-saving technologies. The results of a numerical experiment of a mathematical model show that the introduction of …

Efficient Use Of Water Resources In The Basins Of Small Rivers, F. Gapparov, M.F. Gafforova

Irrigation and Melioration

The article provides a recommendation for the efficient use of water resources in the basins of small foothill rivers. The research was carried out on the example of the Govasay river basin located in the northern part of the Fergana Valley. The efficiency factor of the canal has been determined and a technical assessment has been given for the management of water resources in the river basin; the efficiency of the canal is 65-75%. A program for the operational management of water resources in The Govasay river basin and a GIS map of water consumers in the Govasay river basin …

Model Of Groundwater Level Control Using Horizontal Drainage, A. Arifjanov, M. Otaxonov, Z. Abdulkhaev

Irrigation and Melioration

The article describes the main factors affecting the rise in the level of groundwater in the city of Fergana and ways to eliminate them. Currently, in order to reduce the negative impact of rising groundwater levels on the environment, crops, buildings and structures, as well as underground utilities, it is proposed to design horizontal drainage in urban areas and a mathematical model has been developed for changing the groundwater level. For this, long-term data from observation wells were analyzed and the hydraulic parameters of horizontal drainage were selected taking into account the hydrogeology of the area. Taking into account the …

Results Of Proximate Analysis Of Energy Use Of Municipal Solid Waste, N.N. Abduganiev

Irrigation and Melioration

In the modern industrialized world, various raw materials are processed and used for human consumption. While some of the raw materials are converted into the desired product, the rest is thrown into the environment as waste. It is known that solid waste is a type of biomass that is formed in the course of human life. The article presents the results of a preliminary analysis of studies on the use of solid waste energy in the Urta-Chirchik district of the Tashkent region. Sorting results showed that the total volume of municipal solid waste in the district consists mainly of wood …